Switch.



"UNITED STATES PATENT orinon.

LEMBERT H. MOULTH-ROP, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE PERKINS To all whom it may concern:

ELECTRIC swircn MFG. or CONNECTICUT.

"COMPANY, OF BRIDGEPORT,

CONNECTICUT, A CORPORATION swr'ron. I

Specification of.Letters Patent.

Application filed September 1o, 1908. semi No 452,501.

Be it known that I, LEMBERT H. Moria- THROP, a citizen of the United States of g America, residing in the city of Bridgeport,

25 mg the standard B on which the switch 7 (not strain the latter.

in the county of Fairfield, in the State of Connecticut, ave inventeda certain new and Improved Switch, of which the followmg is a specification.

The object of my invention is to provide a simple and efficient switch mechanism par tic arly with reference to the escapement of the contact member.

In the accompanying drawings, Figure 1 is a side elevation of the operating mechanism of a switch embodying my invention in one form; Fig.2 is a side view thereof; Fig. 3 is a side elevation similar to Fig. 1 with the push buttons in another position; Fig. 4 is a section on the line 4+4, Fig. 2, and Fig. 5 is a front-elevation-of the detent alone.

The present invention will be readily un-.

derstood by those skilled in the art, without illustrating the usual porcelain case and its common accessories, and I have accordingly shown merely the yoke or cross bar A carrymechanism is supported through the spindle On one end of the latter I mount the oscillating contact member 10, adapted to make and break contact with the terminals shown) carried by the porcelain case.

A lug 11 extends from the contact piece through the guideslot 12 in the standard B and'the latter thus limits the extent of the oscillation of said contact piece. The spring 13ic0iled on the s indle C, actuates the C011? tact piece throug the depending ends 14% and .14? which embrace the .lug 11. The rock lever 15 to the o posite ends of which the shanks of the push uttons I6 and 171 are pivoted, is also rovided with a lug 18 similarly embraced ofthe actuating spring," and the latter thus tends to keep both of said lugs 11and 18 in the same place. The rock lever and contact piece would consequently move together .were no detent provided to temporarily re- 7 The snap make and break of the notch is secured by-the sliding detent 19, the lower end of whi h o poses themovement of the lug. 11 across t e .guide slot 12. The detentris actuated b means' of a cam slot 20 in the upper en ofthe same, in which; pin 21 on the-rock lever .15 engages. the out push button is de 'ressed and the .to snap into or out by the ends 14 and 14 standard s to. a position to oppose the lug 11, in which positlon it is kept during the major part of the stroke. At the end of the stroke the de tent is lifted by the pin 21- so as tofree the lug 11 thereby permitting the contact piece of contact (as may be) with the switch terminals. The detent is shown arranged between the standard B and the rock lever, and is guided partially by the spindle (1 which passes through a slot therein and partially bylugs 22 and 23' on the standard which engage slots 24 and 25 in the detent. But the arrangement may be variously modified to suit the particular switch mechanism to which it is adapted.

I claim as my invention:

1. In a push button switch a stationary standard, an oscillating thereby, a stop lug moving with said contact pilepe and means in connection therewith for 'ting the extent of oscillation of said contact piece, a rock lever, :1. lug oscillating therewith, -:a coil springengaging said lugs between its extended ends whereby said spring is tensioned upon the angular separa tion of said lugs, in combination with a slid ing detent guided against angular movement adapted to en age said stop lug and .cani. means actuate by said rock lever to control the position of said detent.

2. In a push button switch an oscillating contact piece and a stop lug moving therowith a, standard carrying said contact iece and limiting the travel of said l'ug, a roc lever,-a lug oscillating therewith, 'a coil spring engaging said lugs between its extended ends whereby said spring is tensioned upon the angular separation of said lugs, in combination with a sliding detent guided against anular movement adapted to engage said stop ug and cam means actuated by said rock lever to control the position of said detent.

- 3. In a tted toreceive a stop lug an osclllating contact piece and a stop lug moving therewith on aging in the slot of said stand ard, in com ination with a sliding detent uided on said standard and adapted to lock the passage ofsaid stop-lug across its slot and cam means to move said detent out substanof engagement with said stop lug, tially as described.

4. his push button switch a stationary contact piece carried 1push button switch, a stationary o standard provided with guide lugs and a of engagement with said stop lug, substan- 10 spindle, an oscillating contactpiece mounted tially as described.

on said spindle, a stop lug moving with said contact piece and engaging in the slot of said r standard, in combination With a sliding detent guided against angular movement by said guide lugs and spindle and adapted to block the passage of said stop lug across its slot ai'id cam means to move said detent out In testimony whereof I have signed my name to this specification, in the presence of tWo subscribing Witnesses.

LEMBERT H. MOULTHROP. Witnesses: p G. W. Goonnmen,

H. W. GoLnsBoRoUGH. 

